Eduardo Cáceres

Already attempted in https://github.com/lynx-chess/Lynx/pull/709 This time based directly on Ciekce 's implementation for Stormphrax. Double checking that current razoring is still winning ``` Test | no-old-razoring Elo | -6.98 +-...

🔍 Delta pruning in QS

1

150 ``` Test | search/delta-qs-pruning Elo | -5.21 +- 6.99 (95%) SPRT | 8.0+0.08s Threads=1 Hash=32MB LLR | -2.27 (-2.25, 2.89) [0.00, 5.00] Games | 5598: +1614 -1698 =2286 Penta...

Iterating from: - https://github.com/lynx-chess/Lynx/pull/614 - https://github.com/lynx-chess/Lynx/pull/616- 8+0.08 ``` Score of Lynx-eval-knight-outposts-opponent-side-no-attackable-by-minor-piece-2440-win-x64 vs Lynx 2428 - main: 2766 - 2745 - 3399 [0.501] 8910 ... Lynx-eval-knight-outposts-opponent-side-no-attackable-by-minor-piece-2440-win-x64 playing White: 1862 - 872...

[Add malus for ply - 1](https://github.com/lynx-chess/Lynx/pull/645/commits/c23986daf72f3f1dbe93c6bcda994c4096d61e05) ``` 8+0.08 Score of Lynx-continuation-history-2547-win-x64 vs Lynx 2539 - main: 639 - 739 - 852 [0.478] 2230 ... Lynx-continuation-history-2547-win-x64 playing White: 459 - 209...

1-ply ``` 8+0.08 Score of Lynx-continuation-history-2546-win-x64 vs Lynx 2539 - main: 624 - 773 - 873 [0.467] 2270 ... Lynx-continuation-history-2546-win-x64 playing White: 435 - 245 - 455 [0.584] 1135 ......

Add ponder support

2

Ponder enabled vs no pondering 👎🏽👎🏽 ``` Finished game 163 (Lynx-add-ponder-support-1877-win-x64 vs Lynx 1875 - main): * {No result} Score of Lynx-add-ponder-support-1877-win-x64 vs Lynx 1875 - main: 13 - 120...

Split UI and engine logic

2

First of all, doing this now might would be a breaking change, so this might be disregarded short-term but brought back once the challenge is over, but: Please consider splitting...